Pneumatic support and shock-absorber for vehicles.



S. W. SCOTT. PNEUMATIC SUPPORT AND SHOCK ABSORBER FOR VEHICLES.

APPLICATION FILED JULY17, 1912. Patented Mar. 10, 1914.

the running gear of a vehicle, tor-propelled or horse-drawn,

. s. WALTERSCOTT, or TROY, NEW YORK.

PNEUMATIC sUProR'r AND SHOCK-ABSORBER roe VEHICLES.

Specification of Letters Patent. Patented B1 1'0, 1914 a li ation filedtrul 17,1912. .Serial No. 709,910.

To all whom it may concern:

Be it known that I, S. IVALTER Scour, a

citizen of the United States, residin a-t Troy, in the county :of"Rensselaer and b'tate o'f New York,- have invented new and usefulImprovements in Pneumatic Supports and Shock "kbsorbeis for Vehicles, ofwhich the foil-l ng is a specification.

This invention relates most especially to thecusihioning means betweenthejbody and whether .m-o-'- the purpose being the provisicn ofpneumatic means of novel "Ct'mSt/rutlOH and peculiar connections betweensaid pneumatic means and the parts attached thereto.

The invention consists of the novel 'features, details of constructionand combination of parts, which hereinafter will belmore particularlyset forth, illustrated in the acemnpanving' drawings, and pointed out inthe appended claims.

- Referring to the drawings, forming a part of the specification, Figure 1 is a side vicw of a pneumatic support embodying the f invention.the axle beingin section. Fig. 2 is a front view or the parts shown inFig' 1. end portions of the axle being broken away.

orrcspmiding and like parts are referred to in the followingdescription, and indicated in both views ,of the drawing,'by the samereference characters.

I it is to be um'lerstoml that the invention'is adapted for all types ofvehicles irrespective of the nature of the propelling means. A pneumaticsupport is interposed between the axle and the spring to which the bodyof the vehicle is attached, it being, understood that a pneumaticsupportis had for each end of each axle and the body supporting springs.lfhe relative posnion of the pneumatic support. immateriahsince the samemay be arranged below or above the axle or between the members of'thespring or between such spring and the body of the machine.

.cured in any substantial manner to the plates 8 and f). As shown a.metal ring 11 is bad for each end of the casing and a portion of thelatter is turned outwardly and clamped betv'vccn. the ring 11 and thesack I2 and supplies air thereto. -;or sack-121s removed from'orinserted into .mat-ic support. .matic support is connected directlywith the axle '2, whereas the upper plate is conbracing opposite sidesof the axle and axle receive vertical plate. A pneumatic bag or sack 12is placed within the flexible casing 10 and receives the air bymeans ofwhich the support is 'influted. A tube 3 connects with the bag or Thebag the casing through an opening formed in one of the plates, saidopening having a plug 13 fitted therein and. said plug in turn having anopening for the passage of the tube 3.

A helical spring 14 incloses the casings-11d serves to strengthen thesame, as also to supneu plement the cushioning effect of the p Thelomer'plate of the pneunected with the vehicle spring 15. Bolts '16connect the lower plate 9 with the axle.

A pillow 17 is connected with the upper 'plate 8 and with the vehiclespring 15 and has a limited vertical play with reference to the axle.The pillow 17 is substantially of form and has its vertical membersemreventcd from movement alongthe length of t'he ax-le. Shoulders 18provided upon the portions of the pillow -17,bct-ween them and formguidest-o direct said pillow in its v'ertical'm-ovements and to preventany movement thereof lengthwise of the axle. The upper end oif-thepillow may be clipped or secured in any manner tothe vehicle spring 15so as to move vertically therewith. The pillow 17 forms a connectionbetween the vehicle spring, 15.and the pneumatic support and transfersthe load from the vehicle spring to the said pneumatic support. Anysudden movement of the axle, due to the wheel dropping into a. rut orpassing over an obstruction in the road, is received directly by thepneumatic support and is absorbed thereby before be mg transmitted to.the vehicle-spring .and from the latter to the body of the vehicle.

From the foregoing description, taken in connection with theaccompanying drawings, the advantages of the construction and of-themethod of operation will be readily apparent to those skilled in the artto which the invention a iertains u and while I have loo dcscribe'dtlieprinciple of operation of the invention, together with-the device whichI now considerto be the best embodiment thereof, I desire'to have itunderstood that thedevicn shown is merely illustrative, and

that such changes may be made when de- 4 ppended hereto.

- connecting 2 .sired as are within the scope of the claims Haring thusdescribed is claimed as new, is: 5 n

v 1. A. pneumatic support for vehicles com,-. prising upper and lowerplates, a flexible casing arranged between the platesvand ha'ving itsend portions outwardly-turned, rings for confining the outturned' endsof the easing to .the respecti e pln-tes, a pneumatic; bag arrangedwithin the casing, bolts for the lower plate'to an 'axle. of a 'vehicle,a Usha-ped pillow having connectiOILWith the upper plate and straddlingthe axle and having .a' thereon,

the invention what an .expansible helical spring enc rcling the casingand hwing'its ends in engagement with a the confining rings, and meansfor connecting the 'u pper end of sucl pillowwith a vehicle spring; I 1

' 2. Apneufmatics'upport for vehicles,- the cured at its ends tlgereto;a

limited vertical plny 1 same comprising upper and lower plates, theupper plate havingan o enin e flexible casing arranged between he .pntej$ ihn l searranged within-the ing the opening in extending throughsuch plug and haying casing, a plug for clos connection with thepneumatwbag, 'me ans 3 \3G betweenltheand the vehicle spring snid-g forconnecting the lower plate to an axle of a vehicle, and a. connectionupper plate connection straddling the axl a, limited vertical playthereon from lon ftudinal movement.-

in presence of two. iyitnesses;

Y s. ALTER fSco T r'.

Witnesses: Josnrrr E. Hovm,

{JOHN D. Dic csony the upper plate, a. tubee-a'nd hay ng but prevented:j

v 3 5 In testimony whereof I afiix my signature;

